RWR: open-source Android app detects shoulder surfers

What the research found

RWR is an open-source Android app that uses the front camera to detect shoulder surfers, alerting with a card, a high-priority notification, and saved snapshots or clips, with optional self-hosted Docker server (TLS, pairing, Immich upload).

Claims and how well the evidence supports them

1. RWR uses the Android front camera to detect people looking at the phone screen and shows an alert card, notification, and saves a photo or clip 99%
2. Detection runs on-device by default offline, or can stream frames to a self-hosted Docker server 99%
3. The server runs via docker compose from the RWR repo with a self-signed TLS certificate on port 8443 97%
4. Clips can be saved to the phone gallery (Pictures/RWR) or uploaded to Immich 98%

Evidence

• github.com https://github.com/revocx35/RWR

Actionability rated low.